msp430 模块程序 包括DS18B20 PS2 串口 电机 AD 12864 键盘 DA等

// //返回一个由4个ASCII字符组成的string的32位整数值 //错误返回-1，可能因为str中含有其他字符 // static int toINT(string str) { if (str.Length != 4) { for (int j = 0; j < 5 - str.Length; j++) { str = '0' + str; //4个ASCII字符 } } int INT; char[] ch = str.ToCharArray(); //字符数组 int[] by = new int[4]; //int 数组 try { for (int i = 0; i < 4; i++) { switch (ch[i]) { case '0': by[i] = 0; break; case '1': by[i] = 1; break; case '2': by[i] = 2; break; case '3': by[i] = 3; break; case '4': by[i] = 4; break; case '5': by[i] = 5; break; case '6': by[i] = 6; break; case '7': by[i] = 7; break; case '8': by[i] = 8; break; case '9': by[i] = 9; break; case 'A': by[i] = 10; break; case 'a': by[i] = 10; break; case 'B': by[i] = 11; break; case 'b': by[i] = 11; break; case 'C': by[i] = 12; break; case 'c': by[i] = 12; break; case 'D': by[i] = 13; break; case 'd': by[i] = 13; break; case 'E': by[i] = 14; break; case 'e': by[i] = 14; break; case 'F': by[i] = 15; break; case 'f': by[i] = 15; break; } } INT = (by[0] << 12) | (by[1] << 8) | (by[2] << 4) | by[3]; return INT; } catch { return -1; } }